Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 19/07/2004 at 23:44, xxxxxxxx wrote:
User Information: Cinema 4D Version: 8.503 Platform: Windows ; Mac OSX ; Language(s) : C++ ;
--------- Hi,
is it possible to access and change a vertex map - from the same or another object - at the beginning of each frame from a tag plugin?
I would like to sample lighting data to change the vertext map - any special considerations here?
Thanks for any input!
Kabe
On 29/07/2004 at 06:41, xxxxxxxx wrote:
Ok, maybe it's my Englich? Or was my question downright stupid? Have I overlooked something obvious?
Thanks for any comment
On 30/07/2004 at 17:15, xxxxxxxx wrote:
Hi Kabe,
if you register your tag plugin as an expression it will be evaluated for each frame. Then you can access the tag list of an object via
BaseTag* BaseObject::GetFirstTag(void);
You can check the tag type via
BaseTag::GetType()
The type ID for vertex map tags is "Tvertexmap".
Then, when you cast the BaseTag object to VariableTag, you can access the actual vertex weights using
LONG VariableTag::GetDataCount() LONG VariableTag::GetDataSize() void* VariableTag::GetDataAddress()
In a vertex map there should be one Real value for each vertex (same order as vertices).
Hope this helps. Cheers, Marcus
On 03/08/2004 at 04:34, xxxxxxxx wrote:
Thanks, it helps indeed!
On 31/10/2004 at 09:44, xxxxxxxx wrote:
how do i have to cast this ? please post example code thx
On 31/10/2004 at 13:28, xxxxxxxx wrote:
ok, i have all the weight data now, but how do i know which point belongs to which vertex ? http://wwws.htwk-leipzig.de/~ctheil1/code.jpg
On 31/10/2004 at 20:58, xxxxxxxx wrote:
void *GetDataAddress() should be cast to a Real* for vertex weight maps (Tvertexmap).
The array contains a Real element (weight value) for every vertex in the polygonal/point object - they are in the same order as you would get from object->GetPoint().
Since you are using COFFEE, some this may need conversion from C++ syntax.
On 01/11/2004 at 02:02, xxxxxxxx wrote:
thank you very much! if they have the same order, it must be possible for me to get the relations. i hope so by the way, i only could play around with this vertexmap stuff, because i found an example somewhere inside the i-net, but i currently don´t know how to make one by myself ... i didn´t found the tag in the list, but c4d works with it like i can see in the example. so how do i have to create such a tag ? and how can i define the vertex to one special vertextag ? greetz.